Improvement in throttle-valve stands and stems



J. M. COMPANT 8L E.`KRAIUS`KOPF.

Improvement-in'Throttle Valve and Stem.v

`N0.125,174. Pa'rentedApril22,1872.

L NITED STATES PATENT OFFICE` JOHN M. OOMPANT AND ENGELBEBT KRAUSKOPF,OF FREDEBIOKSBURG,

' TEXAS.

IMPROVEMENT IN THROTTLE-VALVE STANS AND STEMS.

Specication forming part of Letters Patent No. 125,174, dated April 2,1872.

To all lwhom 'it may concern:

Be it known that we, JOHN M. COMPANT and ENGELBERT KRAUsKoPF, ofFredericksburg, in the county ot' Gillespie and State ot' Texas, haveinvented a new and Improved Throttle- Valve Stand and Stem; and we dohereby de clare that the followingis a full, clear, and eXa-ctdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawingforming part of this specification, in which- Y Figure l represents aside view, partly in section, of our invention.` Fig. 2 is a transversesection of the same on the line c c, Fig. l. FigJ is a detail side viewof the braces, of a modiiied construction.

Similar letters of reference indicate corresponding parts.

This invention relates to a new arrangement of support for the stem of athrottle-valve, and has for its object to facilitate the lubricating ofthe screw and cause the parts to be rrnly held in place. The inventionconsists in forming a screw on the outer end of the stem and fitting itinto a nut that is, by braces, held to the sta-nd.

A in the drawing represents the stem ot' the valve. Nea-r its outer endit has formed on it a screw, a, which works in a nut, b. Braces B B,attached to the throttle-stand by means ot' a ring, d, as in Fig. 1, orby screws fitted through projecting ears e at the ends of the braces, asin Fig. 3, serve to hold the nut b. The valve is attached to the innerend of the stem in the ordinary manner. The outer end of the stemcarries a hand-wheel, f. By the outer nut and inner bearing the stem issecurely held at both ends.

The screw can be conveniently lubricated, so that it will not grind inthe-nut, nor wear out in a short time, like the screws of ordinarythrottle-stems.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- The arrangement of the stem A of athrottlevalve, threaded at a, and provided with a nut, b, held inposition by braces B and set-screws C, as and for the purpose described.

JOHN M. GOMPANT. EN GELBERT KRAUSKOPF.

Witnesses ADoLF WEIss, OTTO MARsoHALL.

